Five days ago, Mo Williamsposted a tweet indicating he was returning to the NBA – and to the Cavaliers – for one more year. Apparently that’s no longer the case. According to Sam Amico of AmicoHoops.net (via Twitter), Cavs GM David Griffin announced today that Williams’ agent informed him of his client’s decision to retire.

Williams, the 47th overall pick in the 2003 draft, spent a year in Utah before heading to the Bucks and blossoming into a starting point guard. Over the course of his 13-year NBA career, Wiliams also played for the Cavaliers, Clippers, Trail Blazers, Timberwolves, Hornets, and enjoyed second stints with the Jazz and the Cavs.

An All-Star in 2009, Williams averaged 13.2 PPG, 4.9 APG, and 2.8 RPG for his career, shooting 37.8% on three-point attempts in his 818 regular-season contests. The 33-year-old also appeared in 62 playoff games, winning his first championship with the Cavs this June.

Williams had been set to earn $2,194,500 for the 2016/17 season, so we’ll see how the Cavs handle that cap hit. The team may end up just waiving the veteran guard, eating his salary, but perhaps the two sides can work out a buyout agreement that takes Cleveland off the hook for some of that $2MM+.

Meanwhile, Williams’ departure thins out the point guard ranks for the Cavs. Behind Kyrie Irving, the team will be relying on rookie Kay Felder and perhaps camp invitee Markel Brown, though he’s more of a combo guard. For what it’s worth, Griffin says the Cavs are “comfortable” with the point guard position, adding that it will be a “an incredibly competitive” training camp (Twitter link via Amico).